Error message

• Warning: Undefined array key 16283 in field_collection_entity_preload() (line 1026 of /var/www/www.perillotours.com/sites/all/modules/field_collection/field_collection.module).
• Warning: Cannot modify header information - headers already sent by (output started at /var/www/www.perillotours.com/includes/common.inc:2861) in drupal_send_headers() (line 1554 of /var/www/www.perillotours.com/includes/bootstrap.inc).
• TypeError: array_values(): Argument #1 ($array) must be of type array, null given in array_values() (line 1026 of /var/www/www.perillotours.com/sites/all/modules/field_collection/field_collection.module).